[REVIEW-3.5] crasher fdo#45987

[Markus Mohrhard]

Hey Noel

2012/5/18 Kohei Yoshida <kohei.yoshida at gmail.com>:
> On Fri, May 18, 2012 at 9:14 AM, Noel Power <nopower at suse.com> wrote:
>
>>> http://cgit.freedesktop.org/libreoffice/core/commit/?id=8b1d29bc9b00bc2730738a990023a65ab6e0219b
>>> &
>>>
>>> http://cgit.freedesktop.org/libreoffice/core/commit/?id=abb26f51eea0399754cc8f5b7d7a7d648d68f630
>>
>>
>> I took it that it should work how I outlined above and committed a further
>> fix which should safeguard against illegal access, please additionally
>> consider
>> http://cgit.freedesktop.org/libreoffice/core/commit/?id=8352eb5a1af1eb44550a9d60d31e6c2fb2dc43b9
>
> So, these extra range checks should be safe; however....  The original
> intention of *not* checking the bound of the tab index was that we
> assumed that this list would be in sync with the maTab in ScDocument
> at all times.  So, if they are out of sync then something else may be
> causing this problem...
>
> Let me ping Markus here.  He worked on the rework of ScTable storage,
> and this issue is related to that work.

I agree with Kohei. Needing a range check at this place will most
likely hide a underlying problem. The table container in ScViewData
and the one in ScDocument must always be in sync. I fear that this
might have been a problem that has always been there.

Loosing the sync between the two data structures will result in wrong
sheet numbers coming from the view part. Let me check this bug report
as soon as I have a clean tree.

Regards,
Markus